public class 回文数 {
    public static void main(String[] args) {
        for (int i = 0; i < 100; i++) {
            if(i<10){
                System.out.println(i);
            }
            int ge=i%10;
            int shi=i/10;
            if(ge==shi){
                System.out.println(i);
            }
        }
    }
}
